/* Nine-stage case study: independent of the legacy 13-slide polish pipeline. */
.section-head h1[tabindex="-1"]:focus-visible{outline:none}
:root{--ink:#163e33;--text:#30473f;--muted:#5e6f67;--line:#dae3de;--soft:#f2f6f3;--accent:#d2ff73;--green:#0b4231;--sidebar:236px}
*{box-sizing:border-box}body{margin:0;color:var(--text);background:#fff;font-family:"Noto Sans KR",Inter,sans-serif;font-size:15px;line-height:1.75;word-break:keep-all}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:var(--green);text-underline-offset:4px}button,summary{cursor:pointer}button:disabled{cursor:default;opacity:.45}:focus-visible{outline:3px solid #397958;outline-offset:5px}h1,h2,h3,p,figure,blockquote{margin:0}h1,h2,h3{color:var(--ink);line-height:1.4}h1{font-size:clamp(32px,3.3vw,48px);letter-spacing:-.055em;font-weight:800;line-height:1.3}h2{font-size:24px;letter-spacing:-.035em}h3{font-size:19px;letter-spacing:-.025em}p{margin-top:12px}ul{padding-left:20px}li+li{margin-top:7px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:12px;top:-100px;z-index:100;background:var(--green);color:white;padding:12px}.skip-link:focus{top:12px}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);border-right:1px solid var(--line);background:white;overflow-y:auto;z-index:10}.sb-brand{padding:28px 24px 26px;border-bottom:1px solid var(--line)}.sb-logo{font-size:25px;font-weight:800;letter-spacing:-1px;color:var(--green)}.sb-sub{font-size:11px;color:var(--muted);margin-top:5px}.toc{padding:12px 0}.toc-item{display:flex;align-items:flex-start;gap:13px;border:0;border-left:3px solid transparent;background:transparent;text-align:left;width:100%;padding:17px 20px;color:var(--text)}.toc-item.on{background:var(--soft);border-left-color:var(--green)}.toc-item:hover{background:#f7faf7}.toc-n{font-size:11px;font-weight:700;padding-top:3px}.toc-copy{display:block;min-width:0}.toc-t{display:block;font-size:12px;font-weight:700;line-height:1.5}.toc-s{display:block;font-size:10px;color:var(--muted);line-height:1.5;margin-top:7px}.sidebar-foot{padding:18px 24px;font-size:11px;color:var(--muted);border-top:1px solid var(--line)}.viewer{margin-left:var(--sidebar);padding:0 38px;max-width:1550px}.topbar{height:70px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:12px}.topbar-count{background:var(--green);color:white;padding:6px 12px;border-radius:7px;font-size:11px;font-weight:700}.slide{max-width:1080px;margin:0 auto;padding:58px 0 48px;min-height:calc(100svh - 200px)}.section-head{max-width:840px;margin-bottom:36px}.eyebrow{display:block;color:#466452;font-size:11px;font-weight:700;letter-spacing:.07em;line-height:1.6}.section-head h1{margin-top:16px}.lead{font-size:16px;max-width:740px;color:var(--muted);line-height:1.9;margin-top:18px}.overview-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start;margin:28px 0}.project-facts{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;gap:18px}.project-facts span{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}.project-facts strong{font-size:13px}.project-facts p{font-size:11px;color:var(--muted);margin-top:6px}.problem-statement{padding:24px 0}.problem-statement h2{font-size:23px;margin-top:10px}.problem-statement p{font-size:14px}.primary-link,.secondary-link{display:inline-flex;gap:18px;align-items:center;padding:12px 20px;border-radius:999px;text-decoration:none;font-weight:700;font-size:13px}.primary-link{background:var(--accent);color:#123a29}.secondary-link{border:1px solid #aabeb1;background:white}.small-copy{font-size:12px;color:var(--muted);line-height:1.8}.product-figure{padding:16px;border:1px solid var(--line);border-radius:20px;background:#f7f9f7}.product-figure img{display:block;width:100%;height:520px;object-fit:cover;border-radius:10px;background:white}.product-figure figcaption{font-size:11px;color:var(--muted);margin-top:12px;text-align:center}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}.story-card{padding:24px;background:var(--soft);border-radius:14px;border:1px solid #e7eee8}.story-card h3{margin-top:9px}.story-card p{font-size:14px;line-height:1.9}.source-note{font-size:12px;color:var(--muted);border-left:3px solid #adc2b3;padding:4px 0 4px 14px;margin-top:24px;line-height:1.9}.evidence-link{display:inline-block;font-size:12px;font-weight:600;margin:18px 20px 0 0}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.persona-panel,.jtbd-panel{padding:30px;border-radius:18px;border:1px solid var(--line)}.persona-panel{background:var(--soft)}.persona-panel h2{margin-top:14px}.persona-panel dl{margin-bottom:0}.persona-panel dl div{border-top:1px solid var(--line);padding:13px 0}.persona-panel dt{font-size:12px;font-weight:700}.persona-panel dd{margin:5px 0 0;font-size:14px}.jtbd-panel{background:var(--green);color:white}.jtbd-panel .eyebrow{color:var(--accent)}blockquote{font-size:23px;line-height:1.85;letter-spacing:-.035em;margin-top:25px}.jtbd-panel p{color:#e3ece7;font-size:14px;margin-top:22px}.journey-map{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border:1px solid var(--line);border-radius:16px;overflow:hidden}.journey-map article{padding:22px 16px;border-right:1px solid var(--line)}.journey-map article:last-child{border-right:0}.journey-number{font-size:12px;color:var(--muted)}.journey-map h2{font-size:17px;margin:12px 0 20px}.journey-map article>div{padding:16px 0;min-height:108px;border-top:1px solid var(--line)}.journey-map p{font-size:13px;line-height:1.9;margin-top:9px}.journey-map .eyebrow{font-size:10px}.journey-map .opportunity{background:var(--soft);margin:0 -16px -22px;padding:16px;min-height:145px}.callout{background:var(--green);color:white;border-radius:14px;padding:24px 28px;margin-top:24px}.callout strong{font-size:17px}.callout p{font-size:14px;color:#e6efe8}.priority-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.priority-card{padding:28px;border:1px solid var(--line);border-radius:16px}.priority-tag{display:inline-block;border-radius:6px;background:var(--green);color:white;padding:4px 10px;font-size:12px;font-weight:700}.priority-card:first-child{background:var(--soft)}.priority-card:first-child .priority-tag{background:var(--accent);color:var(--green)}.priority-card h2{margin-top:18px}.priority-card p{font-size:14px}.priority-reason{border-top:1px solid var(--line);padding-top:14px;color:var(--muted)}details{margin-top:25px;border:1px solid var(--line);border-radius:12px}summary{padding:18px 22px;font-size:14px;font-weight:700;color:var(--ink)}.detail-body{padding:0 24px 24px;font-size:14px}.block-title{font-size:20px;margin:36px 0 18px}.ia-root{margin:0 auto;width:150px;text-align:center;background:var(--green);color:white;padding:12px;border-radius:10px;font-weight:700}.ia-branches{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}.ia-branches article{border:1px solid var(--line);border-radius:12px;overflow:hidden}.ia-branches h3{text-align:center;background:var(--soft);padding:12px}.ia-branches ul{font-size:14px;margin:18px 24px;padding-left:14px}.flow{list-style:none;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px;padding:0;margin:0}.flow li{position:relative;padding:18px 12px;border:1px solid var(--line);border-radius:10px;line-height:1.6;margin:0}.flow li+li:before{content:'→';position:absolute;left:-17px;top:26px;color:var(--muted)}.flow strong{display:block;font-size:13px}.flow span{display:block;color:var(--muted);font-size:11px;margin-top:7px}.decision-row{display:grid;grid-template-columns:1fr 330px;gap:40px;align-items:center;padding:32px 0;border-top:1px solid var(--line)}.decision-row h2{font-size:28px;margin-top:12px}.decision-row p{font-size:14px}.decision-row .product-figure img{height:480px}.decision-path{font-size:13px;font-weight:600;padding:15px;background:var(--soft);border-radius:8px;margin-top:20px}.demo-panel{display:flex;justify-content:space-between;gap:26px;align-items:center;border-radius:18px;padding:30px;background:var(--soft);margin-top:28px}.demo-panel h2{margin-top:9px;font-size:23px}.demo-panel p{font-size:13px}.demo-actions{display:flex;flex-wrap:wrap;gap:12px}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}th,td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;min-width:150px}thead{background:var(--soft)}tbody th{font-weight:600}tbody tr:last-child>*{border-bottom:0}.reflection-bottom{margin-top:25px}.reflection-bottom ul{font-size:14px}.closing-note{padding:30px;background:var(--green);border-radius:14px;color:#e3ece7}.closing-note .eyebrow{color:var(--accent)}.closing-note h2{color:white;font-size:29px;margin-top:15px}.closing-note p{font-size:14px}.next-list{list-style:none;margin:0;padding:0}.next-list li{display:flex;gap:24px;border-top:1px solid var(--line);padding:24px 0;margin:0}.next-number{flex-shrink:0;border-radius:50%;height:42px;width:42px;background:var(--soft);display:grid;place-items:center;color:var(--green);font-weight:700;font-size:13px}.next-list h2{font-size:21px}.next-list p{font-size:14px}.next-list .small-copy{font-size:12px}.cs-controls{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:20px 0 24px;max-width:1080px;margin:0 auto}.cs-button{display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:12px 18px;color:var(--green);font-size:12px;text-align:left;max-width:250px;min-height:65px}.cs-button small{display:block;font-size:10px;color:var(--muted);margin-bottom:3px}.btn-next{background:var(--green);color:white}.btn-next small{color:#d5e3da}.reader-center{text-align:center}.reader-position{font-size:11px;color:var(--muted)}.dots{display:flex;justify-content:center;gap:2px;margin-top:4px}.dot{border:0;background:transparent;padding:8px;min-width:24px;min-height:24px}.dot:before{content:'';display:block;width:6px;height:6px;border-radius:50%;background:#bbcbbf}.dot.on:before{background:var(--green)}.pbar{position:fixed;bottom:0;left:var(--sidebar);right:0;height:3px;background:var(--soft);z-index:20}.pbar-fill{display:block;height:100%;background:var(--accent)}
@media(min-width:1700px){.viewer{margin-right:auto}}@media(max-width:1100px){:root{--sidebar:210px}.viewer{padding:0 26px}.toc-item{padding:15px}.journey-map{grid-template-columns:1fr}.journey-map article{display:grid;grid-template-columns:35px 110px repeat(3,1fr);gap:12px;border-right:0;border-bottom:1px solid var(--line);padding:18px}.journey-map h2{margin:0}.journey-map article>div{min-height:0;border:0;padding:0}.journey-map .opportunity{margin:0;padding:10px;border-radius:8px;min-height:0}.journey-map article:last-child{border-bottom:0}.decision-row{grid-template-columns:1fr 270px;gap:24px}.card-grid{gap:12px}.story-card{padding:20px}.flow{grid-template-columns:repeat(3,1fr)}.flow li:nth-child(4):before{content:none}.overview-grid{gap:24px}.project-facts{grid-template-columns:1fr}}
@media(max-width:800px){:root{--sidebar:0px}.sidebar{position:relative;width:100%;border:0;border-bottom:1px solid var(--line);overflow:visible}.sb-brand{padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:15px}.sb-logo{font-size:22px}.sb-sub{font-size:10px;margin:0}.toc{display:flex;overflow-x:auto;padding:0 10px 10px;gap:4px}.toc-item{width:auto;flex-shrink:0;border:1px solid var(--line);border-radius:9px;padding:10px 12px;gap:7px}.toc-t{font-size:11px}.toc-n{font-size:10px;padding-top:0}.toc-s,.sidebar-foot{display:none}.toc-item.on{background:var(--green);color:white;border-color:var(--green)}.viewer{margin:0;padding:0 22px}.topbar{height:56px}.slide{padding:36px 0;min-height:0}h1{font-size:34px}.section-head{margin-bottom:28px}.lead{font-size:14px}.overview-grid,.split,.priority-grid{grid-template-columns:1fr}.project-facts{grid-template-columns:1fr 1fr}.overview-grid .product-figure{max-width:400px;width:100%;margin:0 auto}.card-grid{grid-template-columns:1fr}.story-card{padding:22px}.journey-map article{display:block;padding:22px}.journey-map h2{font-size:20px;margin:8px 0 16px}.journey-map article>div{padding:12px 0;border-top:1px solid var(--line)}.journey-map .opportunity{padding:14px;margin-top:5px}.journey-map p{font-size:14px}.journey-map .eyebrow{font-size:11px}.ia-branches{grid-template-columns:1fr;gap:12px}.flow{grid-template-columns:1fr 1fr;gap:14px}.flow li:nth-child(3):before,.flow li:nth-child(5):before{content:none}.flow li:nth-child(4):before{content:'→'}.decision-row{grid-template-columns:1fr;gap:22px}.decision-row .product-figure{width:min(360px,100%);margin:0 auto}.demo-panel{flex-direction:column;align-items:flex-start;padding:24px}.cs-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px}.reader-center{grid-column:1/-1;grid-row:1}.cs-button{width:100%;max-width:none;font-size:11px;padding:12px;gap:10px}.pbar{left:0}.persona-panel,.jtbd-panel{padding:24px}blockquote{font-size:21px}.table-wrap{border-radius:8px}th,td{padding:13px;min-width:130px}.next-list li{gap:16px}.source-note{font-size:12px}}
@media(max-width:370px){.viewer{padding:0 17px}h1{font-size:30px}.project-facts{grid-template-columns:1fr}.sb-brand{padding:16px}.sb-sub{max-width:140px;text-align:right}.flow{grid-template-columns:1fr}.flow li+li:before{content:none!important}.primary-link{font-size:12px}.next-list h2{font-size:19px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Keep the original sidebar and narrative layout; scale for a 1920px PC. */
@media(min-width:801px){
  :root{--sidebar:220px}
  body{font-size:14px;line-height:1.75}
  .fm-cs-shell{max-width:1360px;margin:0 auto}
  .sidebar{left:max(0px,calc((100vw - 1360px)/2));width:var(--sidebar)}
  .viewer{max-width:1140px;padding:0 32px;margin-right:0}
  .sb-brand{padding:24px 22px}.sb-logo{font-size:23px}
  .toc-item{padding:14px 18px;gap:11px}.toc-s{margin-top:5px}
  .topbar{height:62px}.slide{max-width:1000px;padding:38px 0 34px;min-height:calc(100svh - 180px)}
  h1{font-size:34px;line-height:1.4}h2{font-size:22px}h3{font-size:17px}
  .section-head{margin-bottom:26px}.section-head h1{margin-top:12px}
  .lead{font-size:14px;line-height:1.85;margin-top:14px;max-width:740px}
  .overview-grid{gap:28px;margin:22px 0}.project-facts{padding:14px 0;gap:14px}
  .problem-statement{padding:20px 0}.problem-statement h2{font-size:21px}
  .product-figure{padding:14px;border-radius:14px}.product-figure img{height:400px;object-fit:cover}
  .card-grid{gap:14px;margin-top:22px}.story-card{padding:20px;border-radius:12px}.story-card p{font-size:13px;line-height:1.85}
  .split{gap:20px}.persona-panel,.jtbd-panel{padding:24px;border-radius:14px}
  blockquote{font-size:20px;line-height:1.85;margin-top:20px}.persona-panel dd,.jtbd-panel p{font-size:13px}
  .journey-map article{padding:18px 14px}.journey-map h2{font-size:16px;margin:10px 0 16px}
  .journey-map article>div{min-height:100px;padding:13px 0}.journey-map p{font-size:12px}
  .journey-map .opportunity{margin:0 -14px -18px;padding:14px;min-height:130px}
  .priority-card{padding:22px}.priority-card h2{font-size:21px;margin-top:14px}.priority-card p{font-size:13px}
  .block-title{font-size:19px;margin:28px 0 16px}.ia-branches{gap:16px}.ia-branches ul{font-size:13px}
  .decision-row{grid-template-columns:1fr 280px;gap:30px;padding:26px 0}
  .decision-row h2{font-size:24px;margin-top:10px}.decision-row p{font-size:13px}
  .decision-row .product-figure img{height:360px}
  .decision-row .product-figure img[src*="decision-detail"]{object-fit:contain;background:#f7f9f7}
  .decision-row .product-figure img[src*="recovery-"]{height:auto;object-fit:contain}
  .decision-path{padding:13px;margin-top:16px;font-size:12px}
  .demo-panel{padding:24px;gap:20px;margin-top:24px}.demo-panel h2{font-size:21px}
  .callout{padding:20px 24px}.callout p{font-size:13px}
  th,td{padding:13px 16px}table{font-size:12px}
  .closing-note{padding:24px}.closing-note h2{font-size:25px}
  .next-list li{padding:20px 0}.next-list h2{font-size:19px}.next-list p{font-size:13px}
  .cs-controls{max-width:1000px;padding:16px 0 22px}.cs-button{min-height:56px;padding:10px 16px}
  .pbar{left:max(220px,calc((100vw - 1360px)/2 + 220px));right:max(0px,calc((100vw - 1360px)/2))}
}
@media(min-width:801px) and (max-width:1100px){
  :root{--sidebar:210px}.viewer{padding:0 26px}
  .sidebar{left:0}.toc-item{padding:14px 15px}
  .decision-row{grid-template-columns:1fr 240px;gap:22px}
  .journey-map article{padding:18px}.journey-map article>div{min-height:0;padding:0}
  .journey-map .opportunity{margin:0;padding:10px;min-height:0}
  .pbar{left:210px;right:0}
}
.skip-link:not(:focus){clip-path:inset(50%);width:1px;height:1px;padding:0;overflow:hidden}

/* Keep desktop navigation at a stable rhythm below the brand. */
@media(min-width:801px){
  .sidebar{display:flex;flex-direction:column}
  .sb-brand,.sidebar-foot{flex-shrink:0}
  .toc{display:grid;flex:1 0 auto;grid-template-rows:repeat(11,minmax(48px,1fr));row-gap:4px;align-content:stretch;padding:12px 0;margin:0}
  .toc-item{display:grid;grid-template-columns:20px minmax(0,1fr);column-gap:10px;align-items:center;padding:10px 16px}
  .toc-n{padding-top:0;text-align:center;font-variant-numeric:tabular-nums;line-height:1.5}
  .sidebar-foot{margin:0}
}

/* Hide the page scrollbar while preserving native scrolling and content layout. */
html{
  scrollbar-width:none;
  -ms-overflow-style:none;
}
html::-webkit-scrollbar{
  display:none;
  width:0;
  height:0;
}

/* Tighten P3 table rows without changing typography or other sections. */
@media(min-width:1101px){
  #section-03 .journey-map article>div{min-height:80px}
  #section-03 .journey-map article>div:nth-of-type(2){min-height:100px}
  #section-03 .journey-map .opportunity{min-height:90px}
}

/* Remove repeated spacing in P9 while retaining the existing text sizes. */
@media(min-width:801px){
}

/* Readable text roles; native scrolling lets content grow without compression. */
:root{--cs-body-size:13px;--cs-note-size:12px;--cs-label-size:11px}
.journey-map .eyebrow{font-size:var(--cs-label-size)}
.flow span,.product-figure figcaption{font-size:var(--cs-note-size)}
@media(min-width:801px){
  .journey-map p{font-size:var(--cs-body-size);line-height:1.8}
  table{font-size:var(--cs-body-size);line-height:1.8}
}
/* Shared content-sized rows keep all five columns aligned as text wraps. */
@supports(grid-template-rows:subgrid){
  @media(min-width:1101px){
    #section-03 .journey-map{grid-template-rows:auto auto minmax(80px,auto) minmax(100px,auto) minmax(90px,auto)}
    #section-03 .journey-map article{display:grid;grid-row:span 5;grid-template-rows:subgrid;row-gap:0}
    #section-03 .journey-map article>div,
    #section-03 .journey-map article>div:nth-of-type(2),
    #section-03 .journey-map .opportunity{min-height:0}
  }
}

/* Cards share heading tracks when labels or body text wrap at larger text sizes. */
@supports(grid-template-rows:subgrid){
  @media(min-width:801px){
    .card-grid{grid-template-rows:auto auto auto;row-gap:0}
    .card-grid>.story-card{display:grid;grid-row:span 3;grid-template-rows:subgrid;row-gap:0}
    .priority-grid{grid-template-rows:repeat(2,auto auto auto auto);row-gap:0;margin-bottom:-18px}
    .priority-grid>.priority-card{display:grid;grid-row:span 4;grid-template-rows:subgrid;row-gap:0;margin-bottom:18px}
    .priority-tag{justify-self:start;align-self:start}
  }
}

/* Preserve normal Korean word grouping, but allow long words to wrap when text grows. */
.slide{overflow-wrap:anywhere}

/* Visual roles: primary action, supporting evidence, and deferred scope. */
:root{--cs-support:#e8f0ec;--cs-deferred:#f6f7f6;--cs-border-strong:#afc4b8}
#section-01 .product-figure{background:linear-gradient(145deg,#eef4ef,#fafcf9)}
#section-02 .jtbd-panel{display:flex;flex-direction:column;justify-content:center}
#section-02 .jtbd-panel blockquote{margin-top:18px}
.journey-map .pain{background:#fafbf9}
.journey-map .pain .eyebrow{color:#675c3f}
.journey-map .opportunity .eyebrow{color:var(--green)}
.priority-card:first-child{border-color:var(--cs-border-strong)}
.priority-card:nth-child(2) .priority-tag{background:var(--cs-support);color:var(--green)}
.priority-card:nth-child(3) .priority-tag{background:#fff;border:1px solid var(--cs-border-strong);color:var(--green)}
.priority-card:nth-child(4){background:var(--cs-deferred);border-style:dashed}
.priority-card:nth-child(4) .priority-tag{background:#e8ece9;color:#4d5d54}
.ia-root{position:relative}
.ia-branches{position:relative}
.flow-guide{margin:0 0 14px}
.flow .flow-number{font-size:12px;font-weight:700;letter-spacing:.05em;color:var(--green);margin:0 0 6px}
#section-05 .card-grid .eyebrow{letter-spacing:0}
#section-06 .decision-row{align-items:start}
#section-06 .decision-row>div{padding-top:20px}
.recovery-diagram{background:var(--soft);border:1px solid var(--cs-border-strong);border-radius:14px;padding:22px}
.recovery-diagram h3{margin-top:12px}
.recovery-diagram p{font-size:13px}
.recovery-diagram ol{list-style:none;margin:20px 0 0;padding:0}
.recovery-diagram li{border-top:1px solid var(--line);padding:14px 0;margin:0}
.recovery-diagram li strong{display:block;font-size:13px}
.recovery-diagram li span{display:block;font-size:12px;color:var(--muted);margin-top:6px;line-height:1.8}
.recovery-diagram figcaption{font-size:12px;color:var(--muted);margin-top:12px}
.table-scroll-hint{display:none;font-size:13px}
.next-list h2{margin-top:5px}
.next-list li:nth-child(-n+2) .next-number{background:var(--green);color:#fff}
.next-list li:nth-child(n+3) .eyebrow{color:var(--muted)}
@media(min-width:801px){
  #section-01 .overview-grid{grid-template-columns:1fr 1fr}
  #section-01 .product-figure img{height:430px;object-fit:cover}
  .ia-branches{margin-top:34px}
  .ia-root:after{content:'';position:absolute;width:1px;height:18px;background:var(--cs-border-strong);top:100%;left:50%}
  .ia-branches:before{content:'';position:absolute;left:calc((100% - 32px)/6);right:calc((100% - 32px)/6);top:-17px;border-top:1px solid var(--cs-border-strong)}
  .ia-branches article{position:relative;overflow:visible}
  .ia-branches article:before{content:'';position:absolute;left:50%;top:-17px;height:17px;border-left:1px solid var(--cs-border-strong)}
  .ia-branches h3{border-radius:11px 11px 0 0}
}
@media(max-width:800px){
  .table-scroll-hint{display:block;margin:0 0 10px}
  #section-06 .decision-row>div{padding-top:0}
  .recovery-diagram{width:min(360px,100%);margin:0 auto}
  .recovery-diagram p{font-size:14px}
  .ia-root:after{content:'';display:block;position:absolute;left:50%;top:100%;height:11px;border-left:1px solid var(--cs-border-strong)}
  .ia-branches{border-left:1px solid var(--cs-border-strong);padding-left:16px}
  .ia-branches:before{content:'';position:absolute;left:0;right:50%;top:-11px;border-top:1px solid var(--cs-border-strong)}
  .ia-branches:after{content:'';position:absolute;left:-1px;top:-11px;height:11px;border-left:1px solid var(--cs-border-strong)}
  .ia-branches article{position:relative;overflow:visible}
  .ia-branches article:before{content:'';position:absolute;left:-17px;top:25px;width:16px;border-top:1px solid var(--cs-border-strong)}
}

/* P3 principle: one continuous sentence and a tighter supporting card. */
#section-03 .callout{padding:14px 20px}
#section-03 .callout p{margin-top:8px}

/* Supporting cards grow with their content rather than forced body breaks. */
.card-grid>.story-card{padding:16px 20px}
.priority-card{padding:18px 20px}
.copy-unit{display:inline-block;max-width:100%;vertical-align:top}

/* Compact evidence previews retain a full-resolution, keyboard-accessible reading view. */
.evidence-preview{display:block;width:100%;padding:0;border:0;border-radius:10px;background:transparent;line-height:0;cursor:zoom-in}
.image-view-hint{white-space:nowrap;color:var(--green);font-weight:700}
.image-dialog{width:min(760px,calc(100% - 32px));max-height:90svh;padding:0;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text)}
.image-dialog::backdrop{background:rgba(8,30,22,.68)}
.image-dialog-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line)}
.image-dialog-header h2{font-size:18px;line-height:1.5}
.image-dialog-close{flex-shrink:0;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--green)}
.image-dialog-body{max-height:calc(90svh - 100px);overflow:auto;padding:20px;background:var(--soft)}
.image-dialog-body img{display:block;width:min(520px,100%);height:auto;margin:auto}
@media(min-width:801px){
  #section-06 .decision-row{align-items:center;padding:22px 0}
  #section-06 .decision-row>div{padding-top:0}
  #section-06 .product-figure img{height:280px;object-fit:cover}
  #section-06 .recovery-diagram{padding:18px}
  #section-06 .recovery-diagram ol{margin-top:14px}
  #section-06 .recovery-diagram li{padding:10px 0}
  #section-06 .recovery-diagram li span{margin-top:4px}
}
@media(max-width:800px){
  /* One existing record per block: no nested cards or side-to-side comparison required. */
  .qa-evidence-table{border:0;border-radius:0;overflow:visible}
  .qa-evidence-table table,.qa-evidence-table tbody{display:block;width:100%}
  .qa-evidence-table thead{display:none}
  .qa-evidence-table tr{display:block;border-top:1px solid var(--line);padding:16px 0}
  .qa-evidence-table tbody th{display:block;min-width:0;padding:0;border:0;font-size:14px;line-height:1.8;background:transparent}
  .qa-evidence-table td{display:grid;grid-template-columns:minmax(0,1fr);gap:5px;min-width:0;padding:8px 0 0;border:0;font-size:14px;line-height:1.8}
  .qa-evidence-table td:before{content:attr(data-label);color:var(--muted);font-size:12px;font-weight:700}
  #section-10 .detail-body{padding:18px}
  .image-dialog-header{padding:12px;gap:12px}
  .image-dialog-header h2{font-size:16px}
  .image-dialog-body{padding:12px}
}

/* Home evidence includes a wide presentation backdrop; crop that backdrop, retain the full phone. */
.image-dialog-body img[src*="recommendation-home"]{aspect-ratio:1/2;object-fit:cover}

html:has(.image-dialog[open]){overflow:hidden}

/* Typography QA 01–08 · readable supporting copy and responsive headings. */
.toc-t{font-size:13px}
.toc-s{font-size:12px}
@media(min-width:801px){
  .story-card p,.priority-card p,.decision-row p:not(.small-copy),.jtbd-panel p,.journey-map p{font-size:14px;line-height:1.75}
}
@media(max-width:800px){
  #kpi-table-hint{display:block}
}
@media(max-width:370px){
  .section-head h1 .cs-title-break{display:none}
}

/* Portfolio P0–P2: verified decision reasoning, state gates, evidence taxonomy and reader UX. */
.journey-checkpoints{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}
.journey-checkpoints>div{border:1px solid var(--line);border-top:3px solid var(--green);border-radius:12px;padding:16px;background:#fafcfb;min-width:0}
.journey-checkpoint-n{display:block;color:var(--muted);font-size:11px;font-weight:700;line-height:1.6}
.journey-checkpoints strong{display:block;color:var(--ink);font-size:14px;line-height:1.7;margin:5px 0}
.journey-checkpoints p{font-size:13px;line-height:1.8;margin:0;color:var(--text)}
.flow-decision-gate{margin:22px 0 14px;padding:20px;border:1px solid #bed2c5;border-radius:14px;background:#f8fbf8}
.flow-gate-track{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:10px}
.flow-gate-track>div{border-left:3px solid var(--green);padding:8px 12px;background:white;min-width:0}
.flow-gate-track strong,.flow-gate-track span{display:block;line-height:1.75}
.flow-gate-track strong{font-size:13px;color:var(--ink)}
.flow-gate-track span{font-size:12px;color:var(--muted);margin-top:4px}
.decision-proof{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0 12px}
.decision-proof>div{min-width:0;padding:12px 13px;background:#f5f8f5;border-radius:10px;border-left:3px solid #b2c5b6}
.decision-proof dt{font-size:12px;font-weight:800;color:var(--green);line-height:1.6}
.decision-proof dd{font-size:13px;color:var(--text);line-height:1.75;margin:5px 0 0;overflow-wrap:anywhere}
.cs-implementation-boundary{border-left:3px solid var(--green);padding-left:12px;margin-top:16px;max-width:850px}
.validation-source-keys{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0}
.validation-source-keys span{font-size:12px;line-height:1.75;border:1px solid var(--line);border-radius:10px;padding:12px 13px;min-width:0}
.validation-source-keys b{color:var(--green)}
.validation-doc-links .evidence-record{margin:3px 12px 0 0;font-size:12px}
@media(max-width:1100px){.decision-proof{grid-template-columns:1fr}}
@media(max-width:800px){
  .sidebar{position:sticky;top:0;z-index:30;background:#fff;box-shadow:0 2px 8px rgba(12,45,27,.06)}
  .toc{scroll-snap-type:x proximity;scroll-padding-inline:12px}
  .toc-item{scroll-snap-align:start;min-height:44px}
  .journey-checkpoints,.flow-gate-track,.validation-source-keys{grid-template-columns:1fr}
  .decision-proof{grid-template-columns:1fr}
  .journey-checkpoints>div{padding:14px}
  .flow-decision-gate{padding:16px}
  .flow-gate-track{gap:8px}
  .validation-source-keys span{padding:11px 12px}
}
.toc-item:focus-visible,.cs-button:focus-visible,.slide summary:focus-visible,.evidence-link:focus-visible,.evidence-preview:focus-visible{outline:3px solid #2b7051;outline-offset:3px}
@media(prefers-reduced-motion:reduce){.toc{scroll-behavior:auto}}

/* Portfolio evidence reading: self-contained task method, GitHub optional only. */
.portfolio-task-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}
.portfolio-task-grid article{min-width:0;border:1px solid var(--line);border-left:3px solid var(--green);background:#f8faf8;border-radius:10px;padding:14px}
.portfolio-task-grid h3{font-size:14px;line-height:1.65}
.portfolio-task-grid p{font-size:14px;line-height:1.8;color:var(--text);margin-top:6px}
.portfolio-method-details .detail-body,.portfolio-optional-sources .detail-body{padding:12px 24px 24px}
.portfolio-method-details .detail-body>p,.portfolio-optional-sources .detail-body>p{font-size:14px;line-height:1.85}
.portfolio-optional-sources .validation-doc-links{display:flex;flex-wrap:wrap;column-gap:12px;row-gap:5px;margin-top:10px}
.portfolio-optional-sources .evidence-record{display:inline-flex;align-items:center;min-width:0;font-size:13px;line-height:1.65;margin:8px 12px 0 0;padding:7px 11px;background:var(--soft);border:1px solid var(--line);border-radius:9px;color:var(--text);font-weight:600;overflow-wrap:anywhere}
@media(max-width:800px){
  .portfolio-task-grid{grid-template-columns:1fr}
  .portfolio-method-details .detail-body,.portfolio-optional-sources .detail-body{padding:12px 16px 20px}
}

/* Cover entrypoints: one clear action per environment; preserve existing button design. */
#section-01 .experience-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
#section-01 .experience-actions a{justify-content:space-between;gap:12px;min-height:44px}
#section-01 .experience-disclosure{margin-top:12px;line-height:1.8}
@media(max-width:430px){#section-01 .experience-actions{flex-direction:column;align-items:stretch}#section-01 .experience-actions a{width:100%}}

/* Visual review 01–12: text hierarchy, reading order and complete evidence. */
.section-head h1{letter-spacing:-.03em;text-wrap:balance}
.project-facts span,.project-facts p{font-size:12px;line-height:1.8}
.project-facts strong{font-size:14px}
.flow strong{font-size:14px;line-height:1.65}
.flow span{font-size:13px;line-height:1.8}
.flow .flow-number{font-size:12px}
#section-06 .decision-row{align-items:start;gap:26px}
#section-06 .decision-proof dd{font-size:14px;line-height:1.8}
#section-06 .decision-proof{gap:12px;margin-top:18px}
#section-06 .decision-proof>div{padding:13px 14px}
#section-01 .evidence-preview,#section-06 .evidence-preview{margin-inline:auto}
#section-01 .evidence-preview:has(img[src*="recommendation-home"]){max-width:260px}
#section-06 .evidence-preview:has(img[src*="recommendation-home"]){max-width:220px}
#section-01 .product-figure img[src*="recommendation-home"],
#section-06 .product-figure img[src*="recommendation-home"]{width:100%;height:auto;aspect-ratio:1/2;object-fit:cover}
#section-06 .product-figure img[src*="decision-detail"]{width:100%;height:auto;object-fit:contain}
#section-10 .validation-source-keys{gap:0;border-bottom:1px solid var(--line);margin:12px 0 18px}
#section-10 .validation-source-keys span{border:0;border-radius:0;padding:8px 12px;background:transparent}
@media(min-width:801px){
  #section-06 .decision-row>div{padding-top:0}
  #section-06 .decision-row .product-figure{margin:0}
}
@media(max-width:800px){
  .sb-brand{padding:12px 20px}
  .sb-logo{font-size:20px}
  .toc{padding-bottom:8px}
  .toc-item{padding:8px 10px}
  .topbar{height:48px}
  .slide{padding-top:28px}
  .section-head h1{font-size:32px;line-height:1.4}
  .section-head h1 .cs-title-break{display:none}
  .section-head{margin-bottom:24px}
  #section-03 .journey-map article{padding:18px}
  #section-03 .journey-map article+article{border-top:3px solid var(--cs-border-strong)}
  #section-03 .journey-map h2{margin:6px 0 12px}
  #section-03 .journey-map article>div{padding:9px 0}
  #section-03 .journey-map p{margin-top:5px}
  #section-03 .journey-map .opportunity{padding:11px;margin-top:3px}
  #section-06 .decision-row{gap:18px;padding:22px 0}
  #section-06 .decision-proof{gap:8px}
  #section-06 .decision-proof>div{padding:10px 12px}
  #section-10 .validation-source-keys span{padding:6px 0}
  .cs-button{font-size:12px}
}
@media(max-width:370px){
  .section-head h1{font-size:30px}
  .sb-brand{padding:10px 16px}
}

/* Small visual patches: explicit row continuation and one journey divider. */
@media(min-width:801px) and (max-width:1100px){
}
@media(max-width:800px){
  #section-03 .journey-map article:not(:last-child){border-bottom:0}
}

/* Subtle feedback; content and native keyboard interactions remain immediate. */
.toc-item,.cs-button,.primary-link,.secondary-link,.image-dialog-close{touch-action:manipulation}
.slide details>summary{display:block;position:relative;padding-right:52px;list-style:none;border-radius:11px}
.slide details>summary::-webkit-details-marker{display:none}
.slide details>summary::after{content:'';position:absolute;right:23px;top:calc(50% - 5px);width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);pointer-events:none}
.slide details[open]>summary{background:var(--soft)}
.slide details[open]>summary::after{transform:rotate(225deg)}
#section-01 .evidence-preview:focus-visible,#section-06 .evidence-preview:focus-visible{box-shadow:0 0 0 4px var(--soft)}
@media(hover:hover) and (pointer:fine){
  .toc-item:not(.on):hover{background:var(--soft)}
  .cs-button:not(:disabled):hover{border-color:var(--cs-border-strong);box-shadow:0 2px 8px rgba(8,30,22,.08)}
  .primary-link:hover,.secondary-link:hover,.image-dialog-close:hover{box-shadow:0 2px 8px rgba(8,30,22,.12)}
  .slide details>summary:hover{background:var(--soft)}
  #section-01 .evidence-preview:hover,#section-06 .evidence-preview:hover{box-shadow:0 0 0 3px var(--cs-border-strong)}
}
@media(prefers-reduced-motion:no-preference){
  @keyframes cs-image-enter{from{opacity:.94;transform:scale(.985)}to{opacity:1;transform:scale(1)}}
  @keyframes cs-backdrop-enter{from{opacity:.9}to{opacity:1}}
  .slide.on:not([hidden]){animation:cs-section-enter 180ms ease-out}
  .toc-item,.cs-button,.primary-link,.secondary-link,.image-dialog-close{transition:background-color 140ms ease,border-color 140ms ease,box-shadow 140ms ease,transform 100ms ease}
  .toc-item:active,.cs-button:not(:disabled):active,.primary-link:active,.secondary-link:active,.image-dialog-close:active{transform:translateY(1px)}
  .pbar-fill{transition:width 180ms ease-out}
  #section-01 .evidence-preview,#section-06 .evidence-preview{transition:box-shadow 140ms ease}
  .image-dialog[open]{animation:cs-image-enter 160ms ease-out}
  .image-dialog[open]::backdrop{animation:cs-backdrop-enter 160ms ease-out}
  .slide details>summary{transition:background-color 140ms ease}
  .slide details>summary::after{transition:transform 160ms ease}
}

/* P1 desktop module layout: preserve the centered shell and all narrative copy. */
@media(min-width:1400px){
  #section-01{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;padding-top:24px;padding-bottom:24px;align-content:start}
  #section-01 .section-head{grid-column:1;grid-row:1;max-width:none;margin:0;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff}
  #section-01 .section-head h1{margin-top:8px}
  #section-01 .lead{max-width:620px;margin-top:10px}
  #section-01 .overview-grid{display:contents}
  #section-01 .overview-grid>div{grid-column:1;grid-row:2;min-width:0;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff}
  #section-01 .project-facts{padding:0 0 12px;border-top:0;gap:16px}
  #section-01 .problem-statement{padding:12px 0}
  #section-01 .problem-statement h2{margin-top:6px}
  #section-01 .problem-statement p{margin-top:8px}
  #section-01 .experience-disclosure{margin-top:8px}
  #section-01 .product-figure{grid-column:2;grid-row:1/span 2;min-width:0;margin:0;padding:14px;display:flex;flex-direction:column;justify-content:center;border-radius:12px;background:var(--soft)}
  #section-01 .evidence-preview:has(img[src*="recommendation-home"]){max-width:240px}
  #section-01 .product-figure figcaption{line-height:1.7}
  #section-01>.card-grid{grid-column:1/-1;grid-row:3;margin:0;column-gap:12px}
  #section-01 .story-card{padding:14px 16px;background:#fff;border-color:var(--line);border-radius:12px}
  #section-01 .story-card h3{margin-top:5px}
  #section-01 .story-card p{margin-top:6px}
}

/* P2–P9 desktop modules: same centered shell and density as the approved P1. */
@media(min-width:1400px){
  .slide:not(#section-01){padding-top:24px;padding-bottom:24px}
  .slide:not(#section-01)>.section-head{max-width:none;margin:0 0 16px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff}
  .slide:not(#section-01)>.section-head h1{margin-top:8px}
  .slide:not(#section-01)>.section-head .lead{margin-top:10px}
  .slide:not(#section-01) .card-grid{margin-top:16px;column-gap:12px}
  .slide:not(#section-01) .story-card{padding:16px 18px;background:#fff;border-color:var(--line);border-radius:12px}
  .slide:not(#section-01) .story-card h3{margin-top:6px}
  .slide:not(#section-01) .story-card p{margin-top:8px}
  .slide:not(#section-01) .source-note{margin-top:14px}
  .slide:not(#section-01)>details{margin-top:14px}
  .slide:not(#section-01) .block-title{margin:20px 0 12px}
  #section-02 .split{gap:16px}
  #section-02 .persona-panel,#section-02 .jtbd-panel{padding:20px;border-radius:12px}
  #section-02 .persona-panel{background:#fff}
  #section-02 .persona-panel h2{margin-top:10px}
  #section-02 .persona-panel dl div{padding:10px 0}
  #section-02 blockquote{margin-top:16px}
  #section-03 .journey-map{border-radius:12px}
  #section-03 .callout{padding:16px 20px;margin-top:14px;border-radius:12px}
  #section-03 .callout p{margin-top:8px}
  #section-03 .journey-checkpoints{gap:12px;margin-top:14px}
  #section-03 .journey-checkpoints>div{padding:14px 16px;background:#fff}
  #section-04 .priority-grid{gap:12px;margin-bottom:0}
  #section-04 .priority-card{padding:18px 20px;border-radius:12px}
  #section-04 .priority-card h2{margin-top:12px}
  #section-04 .priority-reason{padding-top:10px}
  #section-05 .ia-tree{padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff}
  #section-05 .ia-root{padding:8px 12px}
  #section-05 .ia-branches{column-gap:12px;margin-top:30px}
  #section-05 .ia-branches ul{margin:12px 18px}
  #section-06 .decision-list{display:grid;gap:16px}
  #section-06 .decision-row{grid-template-columns:minmax(0,1fr) 280px;gap:20px;padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}
  #section-06 .decision-row h2{margin-top:8px}
  #section-06 .decision-proof{grid-template-columns:1fr;gap:10px;margin:14px 0 0}
  #section-06 .decision-proof>div{padding:10px 12px}
  #section-06 .decision-row .product-figure{padding:12px;border-radius:10px;background:var(--soft)}
  #section-06 .product-figure img[src*="decision-detail"]{max-height:440px;object-fit:contain}
  #section-06 .recovery-diagram{padding:16px;border-radius:10px}
  #section-06 .cs-implementation-boundary{margin-top:14px}
  #section-10 .validation-source-keys{margin:10px 0 14px}
  #section-10 .qa-evidence-table{border-radius:12px}
  #section-10 .qa-evidence-table th,#section-10 .qa-evidence-table td{padding:13px 16px}
  #section-08 .card-grid{margin-top:0}
  #section-08 .reflection-bottom{gap:16px;margin-top:16px}
  #section-08 .reflection-bottom .story-card{padding:20px}
  #section-08 .closing-note{padding:20px;border-radius:12px}
  #section-08 .closing-note h2{margin-top:10px}
}

/* Desktop title review: retain copy and shell; let compact headings read on one line. */
@media(min-width:1400px){
  .section-head h1{font-size:32px;text-wrap:wrap}
  #section-01 .section-head h1{font-size:28px}
  .section-head h1 .cs-title-break{display:none}
}

/* QA 01–08: emphasize the decision while retaining the approved shell. */
#section-06 .decision-proof>div{background:transparent;border-left:0;border-radius:0;border-bottom:1px solid var(--line)}
#section-06 .decision-proof>.decision-judgment{background:var(--soft);border-left:3px solid var(--green);border-bottom:0;border-radius:8px}
#section-06 .decision-proof>.decision-judgment dd{font-weight:700;color:var(--ink)}
#section-06 .product-figure figcaption{font-size:13px;line-height:1.8}
#section-06 .evidence-notice{display:block;margin-top:4px;font-weight:700;color:var(--ink)}

/* Keep the desktop evidence notice from ending with a single short word. */
@media(min-width:1920px){
  #section-06 .product-figure .evidence-notice{text-wrap:balance}
}


/* Evidence additions: preserve shell width, type scale and product image ratios. */
.wireframe-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.wireframe-record{min-width:0;padding:12px;border:1px solid var(--line);border-radius:12px}.wireframe-record h2{font-size:16px}.wireframe-record img{width:100%;height:auto;aspect-ratio:390/844;object-fit:contain}.wireframe-record .evidence-preview{width:100%;margin-top:12px}.wireframe-record p{font-size:13px;line-height:1.8}.ai-contract{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.ai-contract .story-card{padding:16px}.ai-contract h3{font-size:16px}#section-06 .flow{margin-top:14px}@media(max-width:1100px){.wireframe-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.ai-contract{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:800px){.wireframe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wireframe-record h2{font-size:15px}#section-06 .flow{grid-template-columns:1fr;gap:24px}#section-06 .flow li+li:before{content:"↓"!important;left:50%;top:-25px}.ai-contract{grid-template-columns:1fr}}@media(max-width:370px){.wireframe-grid{grid-template-columns:1fr}.wireframe-record .evidence-preview{max-width:220px;margin-inline:auto}}

#section-06 .flow li:nth-child(4):before{content:"→"}@media(max-width:800px){#section-06 .flow li+li:before{content:"↓"!important}}

@media(max-width:800px){.slide .table-wrap:not(.qa-evidence-table){overflow:visible;border:0}.slide .table-wrap:not(.qa-evidence-table) table,.slide .table-wrap:not(.qa-evidence-table) tbody{display:block;width:100%}.slide .table-wrap:not(.qa-evidence-table) thead{display:none}.slide .table-wrap:not(.qa-evidence-table) tr{display:block;border-top:1px solid var(--line);padding:14px 0}.slide .table-wrap:not(.qa-evidence-table) tbody th{display:block;min-width:0;border:0;padding:0;font-size:14px}.slide .table-wrap:not(.qa-evidence-table) td{display:grid;grid-template-columns:minmax(0,1fr);gap:5px;min-width:0;border:0;padding:8px 0 0;font-size:14px}.slide .table-wrap:not(.qa-evidence-table) td:before{content:attr(data-label);font-size:12px;color:var(--muted);font-weight:700}}

/* Card typography QA: retain shell, product image ratio and title scale. */
.slide .story-card,.slide .priority-card,.slide .wireframe-record{min-width:0}
.slide .story-card h3{line-height:1.6;text-wrap:pretty}
.slide .story-card p{line-height:1.8;text-wrap:pretty}
.slide .card-grid,.slide .priority-grid,.slide .ai-contract{align-items:stretch}
.slide .story-card .eyebrow{margin:0}
.slide .story-card h3+p{margin-top:10px}
.slide>.source-note{margin-top:16px}
.slide>details+.journey-map{margin-top:16px}
#section-09 .ai-contract .story-card{display:flex;flex-direction:column;padding:20px}
#section-09 .ai-contract h3{font-size:16px;line-height:1.6;margin-top:8px}
#section-09 .ai-contract p{font-size:14px;line-height:1.8;margin-top:10px}
#section-09 .card-grid{margin-top:16px}
.wireframe-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.wireframe-record{display:flex;flex-direction:column;padding:18px}
.wireframe-record>h2{font-size:17px;line-height:1.6}
.wireframe-record>.evidence-preview{width:100%;max-width:300px;margin:16px auto 0}
.wireframe-record>p{margin-top:14px;font-size:14px;line-height:1.8}
.wireframe-record>.small-copy{margin-top:8px;font-size:13px;line-height:1.8}
@media(min-width:801px){
 .slide:not(#section-01){padding-bottom:32px}
 .slide .card-grid{gap:16px}
 .slide .story-card{padding:20px}
 .slide>.section-head{margin-bottom:20px}
 .slide .table-wrap table{font-size:13px;line-height:1.8}
 .slide .block-title{margin-top:24px;margin-bottom:16px}
 #section-11 .reflection-bottom{margin-top:20px}
 #section-11 .closing-note{padding:24px}
 #section-11 .closing-note h2{font-size:24px;line-height:1.6}
}
@media(max-width:1100px){.wireframe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:800px){
 .slide .card-grid,#section-09 .ai-contract{gap:16px}
 .slide .story-card{padding:20px}
 .wireframe-grid{grid-template-columns:1fr}
}
/* All disclosures: consistent closed/open header and content insets. */
.slide>details{margin-top:16px;overflow:visible}
.slide details>summary{padding:18px 56px 18px 22px;min-height:60px;line-height:1.7}
.slide details>summary:after{right:24px}
.slide details[open]>summary{border-radius:11px 11px 0 0;border-bottom:1px solid var(--line)}
.slide details>.detail-body,.slide .portfolio-method-details>.detail-body,.slide .portfolio-optional-sources>.detail-body{padding:22px 24px 24px}
.slide details>.detail-body>p:first-child{margin-top:0}
.slide details>.detail-body>p+p{margin-top:16px}
.slide details>.detail-body>.table-wrap,.slide details>.detail-body>.split{margin:0}
.slide details .table-wrap{border-radius:10px}
.slide details table{table-layout:fixed}
.slide details th,.slide details td{min-width:0;overflow-wrap:anywhere;font-size:14px;line-height:1.8;padding:14px 16px}
.slide details th:first-child{width:23%}
.slide details .detail-body .persona-panel,.slide details .detail-body .jtbd-panel{padding:22px}
@media(max-width:800px){
 .slide details>summary{padding:16px 48px 16px 18px;min-height:56px}
 .slide details>summary:after{right:20px}
 .slide details>.detail-body,.slide .portfolio-method-details>.detail-body,.slide .portfolio-optional-sources>.detail-body{padding:18px}
 .slide details .table-wrap{border:0;border-radius:0;overflow:visible}
 .slide details th:first-child{width:auto}
 .slide details .table-wrap td{grid-template-columns:minmax(0,1fr);gap:4px;padding-top:10px;font-size:14px}
 .slide details .table-wrap td:before{font-size:12px;line-height:1.7}
 .slide details .table-wrap tbody th{padding:0;font-size:14px}
 .slide details .detail-body .persona-panel,.slide details .detail-body .jtbd-panel{padding:18px}
}

.slide .story-card,.slide .priority-card,.slide .wireframe-record,.slide .closing-note,.slide .persona-panel,.slide .jtbd-panel{overflow-wrap:anywhere}
.slide .section-head h1{overflow-wrap:anywhere}

.slide :is(.story-card,.priority-card,.wireframe-record,.closing-note,.persona-panel,.jtbd-panel) :is(h2,h3),.slide .ia-branches h3,.slide .journey-map h2{line-height:1.6}
.slide th,.slide td,.slide summary{overflow-wrap:anywhere}

/* Mobile visual hierarchy: process, supporting rules and closing emphasis. */
@media(max-width:800px){
 #section-09>.card-grid>.story-card{background:#fff;border-color:var(--line)}
 #section-11 .reflection-bottom>.story-card{background:#fff;border-color:var(--line)}
}

/* Desktop visual refinement: retain the 1360px shell and existing screen ratios. */
@media(min-width:801px){
 #main .slide>.section-head{
  background:linear-gradient(110deg,#f3f7f4 0%,#fff 72%);
  border-color:#d6e1da;
  border-left:3px solid #39735a;
 }
 #main .slide>.section-head>.eyebrow{color:#38634e}
 #main .slide>.section-head .lead{color:#596b61}
 .slide .story-card,.slide .priority-card,.slide .wireframe-record{
  border-color:#d6e1da;
  box-shadow:0 2px 7px rgba(19,58,41,.035);
 }
 #section-01>.card-grid>.story-card{background:#f6f9f6}
 #section-02>.card-grid>.story-card:first-child{background:#f3f7f4}
 #section-06 .flow li{
  background:linear-gradient(180deg,#f5f8f5 0%,#fff 64%);
  border-color:#d3dfd7;
 }
 #section-06 .flow .flow-number{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:7px;background:var(--green);
  color:#fff;font-size:11px;line-height:1;margin-bottom:10px;
 }
 #section-06 .flow li>span{font-size:13px;line-height:1.8}
 #section-07 .wireframe-record{background:#f6f8f6}
 #section-07 .wireframe-record>.evidence-preview{background:#fff;border-radius:18px}
 #section-09 .ai-contract>.story-card{background:#f3f7f4}
 #section-09 .ai-contract .eyebrow{color:#38634e}
 .slide .table-wrap thead{background:#edf4ef}
 .slide .table-wrap tbody tr:nth-child(even){background:#fafcfb}
 .slide details{border-color:#d6e1da}
 .slide details>summary{background:#f3f7f4}
 .slide details>summary:hover{background:#eaf1ec}
 .slide details[open]>summary{background:#edf4ef}
 .slide .source-note{border-left-color:#91b39e}
}

/* Give 1920px desktop content 32px more room on each side. */
@media(min-width:1600px){.slide,.cs-controls{max-width:1064px}}

/* Reading hierarchy and interaction polish; content and screen proportions retained. */
:root{--text:#34433b;--muted:#56675d}
#section-07 .evidence-preview{position:relative}
#section-07 .evidence-preview::after{
 content:'확대 ↗';position:absolute;right:10px;top:10px;
 padding:7px 10px;border:1px solid #b8ccbf;border-radius:8px;
 background:#fff;color:var(--green);font-size:12px;font-weight:700;line-height:1.4;
 pointer-events:none;box-shadow:0 2px 5px rgba(15,52,36,.08);
}
@media(min-width:801px){
 #main .slide .story-card p,#main .slide .priority-card p,
 #main .slide .ia-branches ul,#main .slide .journey-map p,
 #main .slide .persona-panel dd,#main .slide .jtbd-panel p{font-size:14px;line-height:1.8}
 #main .slide .table-wrap :is(th,td){font-size:14px;line-height:1.8}
 #main .slide>.source-note,#main .slide .small-copy{font-size:13px;line-height:1.8}
 #main .slide .ai-contract h3{font-size:18px;line-height:1.6}
 #section-09 .ai-contract>.story-card{padding:24px;min-height:164px}
 #section-09>.card-grid>.story-card{padding:24px}
 #main .slide>.section-head{margin-bottom:24px}
 #section-01>.section-head{margin-bottom:0!important}
 #section-05>.card-grid,#section-09>.card-grid{margin-top:24px}
 #section-06 .flow li{padding:20px 14px}
 #section-06 .flow li>span:not(.flow-number){font-size:14px;line-height:1.8}
 #section-11 .reflection-bottom{margin-top:24px}
}
@media(hover:hover){
 #section-07 .evidence-preview:hover{box-shadow:0 0 0 3px #91b39e}
 .primary-link:hover{background:#c4f55f}
 .secondary-link:hover{background:#edf4ef;border-color:#91b39e}
}
@media(prefers-reduced-motion:no-preference){
 @keyframes cs-section-enter{from{transform:translateY(4px)}to{transform:none}}
 @keyframes cs-detail-enter{from{transform:translateY(3px)}to{transform:none}}
 .slide.on:not([hidden]){animation:cs-section-enter 180ms ease-out}
 .slide details[open]>.detail-body{animation:cs-detail-enter 180ms ease-out}
 #section-07 .evidence-preview{transition:box-shadow 140ms ease}
}
@media(prefers-reduced-motion:reduce){
 .slide,.slide .detail-body,.image-dialog,.image-dialog::backdrop{
  animation:none!important;transition:none!important;
 }
}

/* Keep desktop section headings at a consistent top position. */
@media(min-width:801px){
  .viewer{display:flex;flex-direction:column;min-height:calc(100svh - 3px)}
  .viewer>.topbar,.viewer>.cs-controls{flex-shrink:0}
  .viewer>.track{flex:1;display:grid;align-items:start;align-content:start;min-width:0}
  .viewer>.track>.slide{width:100%;min-height:0;padding-block:32px}
  .viewer>.cs-controls{width:100%}
}

/* Balance the five wireframes as one desktop sequence and centered wrapped rows. */
@media(min-width:801px){
  #section-07 .wireframe-grid{display:flex;flex-wrap:wrap;justify-content:center;align-items:stretch;gap:16px}
  #section-07 .wireframe-record{flex:0 0 calc((100% - 32px)/3)}
}
@media(min-width:801px) and (max-width:1100px){
  #section-07 .wireframe-record{flex-basis:calc((100% - 16px)/2)}
}
@media(min-width:1400px){
  #section-07 .wireframe-grid{gap:12px}
  #section-07 .wireframe-record{flex-basis:calc((100% - 48px)/5);padding:14px 12px}
  #section-07 .wireframe-record>.evidence-preview{margin-top:14px}
  #section-07 .evidence-preview::after{right:6px;top:6px;padding:5px 7px;font-size:11px}
}

/* Consistent spacing for peer cards; let each row size to its own content. */
#section-04 .priority-grid{gap:16px}
#section-04 .priority-grid>.priority-card{margin-bottom:0}
@media(min-width:801px){
  #main .slide:not(#section-01) .card-grid{gap:16px}
  #section-05 .ia-branches,#section-09 .ai-contract,#section-11 .reflection-bottom{gap:16px}
}

/* Reader UI: numbered screens, connected exceptions and documented QA results. */
.wireframe-step{margin-bottom:6px;color:#38634e}
.image-dialog{max-height:calc(100svh - 32px);overflow:hidden}
.image-dialog[open]{display:flex;flex-direction:column}
.image-dialog-header{flex-shrink:0;gap:16px}
.image-dialog-position{margin-bottom:4px}
.image-dialog-caption{flex-shrink:0;margin:0;padding:12px 22px;color:var(--muted);font-size:14px;line-height:1.8;background:var(--soft);border-bottom:1px solid var(--line)}
.image-dialog .image-dialog-body{flex:1;min-height:0;overflow:auto}
.image-dialog-navigation{flex-shrink:0;display:flex;justify-content:space-between;gap:12px;padding:12px 18px;border-top:1px solid var(--line);background:#fff}
.image-dialog-navigation button{padding:10px 14px;min-height:44px;border:1px solid var(--line);border-radius:9px;background:var(--soft);color:var(--green);font-size:13px;font-weight:700}
.image-dialog-navigation button:not(:disabled):hover{background:#eaf1ec;border-color:#91b39e}
#section-06 .flow-step-button{display:block;width:100%;padding:6px 0;margin:0;border:0;background:transparent;color:var(--ink);text-align:left;border-radius:4px}
#section-06 .flow-step-button strong{font-size:13px}
#section-06 .flow-gate-track>div{padding:0;background:#fff}
#section-06 .flow-gate-button{display:block;width:100%;height:100%;padding:12px;border:0;background:transparent;color:var(--text);text-align:left}
#section-06 .flow-gate-button strong{font-size:13px;line-height:1.8}
#section-06 .flow-gate-button>span:not(.flow-gate-step){font-size:12px;line-height:1.8;margin-top:5px}
#section-06 .flow-gate-button>.flow-gate-step{font-size:11px;margin-bottom:6px;color:#38634e}
#section-06 .flow>li.flow-linked,#section-06 .flow-gate-track>div.flow-linked{background:#edf5e8;border-color:#39735a;box-shadow:inset 0 0 0 1px #39735a}
#section-06 .flow-step-button:hover,#section-06 .flow-gate-button:hover{background:#edf4ef}
#section-06 .flow-selection-status{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
#section-10 .qa-case-number{display:block;margin-bottom:7px;color:#38634e;font-size:11px}
#section-10 .qa-evidence-table tbody th{color:var(--ink)}
#section-10 .qa-evidence-table .qa-confirmed-result{background:#f0f6ed;border-left:3px solid #91b39e}
#section-10 .qa-confirmed-result strong{font-weight:600;color:var(--green);line-height:1.8}
@media(max-width:800px){
 .image-dialog-caption{padding:10px 16px;font-size:13px}
 .image-dialog-navigation{padding:10px 12px}
 .image-dialog-header>div{min-width:0}
 .image-dialog-header h2{overflow-wrap:anywhere}
 .image-dialog-close{flex-shrink:0}
 #section-10 .qa-evidence-table .qa-confirmed-result{margin-top:8px;padding:12px;border-radius:8px}
}

/* Visual refinement across all eleven sections: quiet canvas, white surfaces and purposeful accents. */
:root{--cs-canvas:#f6f8f5;--cs-surface:#fff;--cs-edge:#dce5dd;--cs-mint:#edf4ed;--cs-shadow:0 3px 14px rgba(21,55,37,.045)}
body{background:var(--cs-canvas)}
.sidebar{background:#fff;border-right-color:var(--cs-edge)}
.topbar{border-bottom-color:var(--cs-edge);color:#506258}
.topbar-count{box-shadow:0 2px 6px rgba(11,66,49,.1)}
.sb-logo{letter-spacing:-.9px}
.toc-item.on{background:#edf4ed;border-left-color:#0b4231}
.toc-item:not(.on) .toc-s{color:#607267}
.cs-controls{border-top-color:var(--cs-edge)}
.cs-button{background:#fff;border-color:var(--cs-edge);box-shadow:0 2px 8px rgba(21,55,37,.025)}
.btn-next{background:var(--green);border-color:var(--green);color:#fff}
#main .slide>.section-head{background:#fff;border-color:var(--cs-edge);border-left-color:#39735a;box-shadow:var(--cs-shadow)}
#main .slide>.section-head>.eyebrow{display:inline-flex;align-items:center;padding:4px 8px;border-radius:6px;background:var(--cs-mint);color:#38634e}
#main .slide :is(.story-card,.priority-card,.wireframe-record,.persona-panel,.ia-tree){border-color:var(--cs-edge);box-shadow:var(--cs-shadow)}
#main .slide .story-card{background:#fff}
#main .slide .source-note{color:#526459;border-left-color:#8eae97}
#main .slide details{background:#fff;border-color:var(--cs-edge);box-shadow:0 2px 8px rgba(21,55,37,.025)}
#main .slide details>summary{background:#f0f5ef}
#main .slide details[open]>summary{background:#eaf2e9;border-bottom-color:var(--cs-edge)}
#main .slide .table-wrap{background:#fff;border-color:var(--cs-edge);box-shadow:0 2px 10px rgba(21,55,37,.025)}
#main .slide .table-wrap thead{background:#eaf2e9}
#main .slide .table-wrap tbody tr:nth-child(even){background:#f9fbf8}
#main .slide .table-wrap tbody th{color:var(--ink)}
#section-01 .product-figure{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 85% 10%,rgba(210,255,115,.32),transparent 55%),#eaf1e8;border-color:#d0dfd1;box-shadow:0 8px 24px rgba(21,55,37,.07)}
#section-01 .product-figure:before{content:'';position:absolute;inset:24px 18px 52px;border:1px solid rgba(73,119,87,.17);border-radius:9px;pointer-events:none;z-index:-1}
#section-01 .product-figure:after{content:'';position:absolute;width:110px;height:110px;left:calc(50% - 55px);top:calc(50% - 70px);border:1px solid rgba(73,119,87,.17);border-radius:50%;pointer-events:none;z-index:-1}
#section-01 .product-figure .evidence-preview{box-shadow:0 8px 20px rgba(21,55,37,.09);border-radius:18px;background:#fff}
#section-01>.card-grid>.story-card{background:#fff;border-top:3px solid #abc7ad}
#section-02>.card-grid>.story-card:first-child{background:#edf5e9;border-top:3px solid #84a88a}
#section-02>.card-grid>.story-card:first-child h3{font-weight:800}
#section-02>.card-grid>.story-card:nth-child(2){border-top:3px solid #b3c9b7}
#section-02>.card-grid>.story-card:nth-child(3){border-top:3px solid #d6e2d6}
#section-03 .journey-map{background:#fff;border-color:var(--cs-edge);box-shadow:var(--cs-shadow)}
#section-03 .journey-number{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:26px;padding:0 6px;background:#eaf2e9;color:#38634e;border-radius:6px;font-weight:700}
#section-03 .journey-map .pain{background:#faf9f5}
#section-03 .journey-map .opportunity{background:#eaf3e8}
#section-03 .persona-panel{background:#f3f7f1}
#section-03 .jtbd-panel{box-shadow:0 4px 14px rgba(11,66,49,.08)}
#section-04 .priority-card:first-child{background:#eaf4e4;border-color:#9ebb9f;border-top:3px solid #39735a}
#section-04 .priority-card:nth-child(2){background:#fff}
#section-04 .priority-card:nth-child(3){background:#fff}
#section-04 .priority-card:nth-child(4){background:#f2f4f1;border-color:#d7dfd6;box-shadow:none}
#section-04 .priority-tag{border-radius:7px}
#section-05 .ia-tree{background:#f0f5ef;border-color:var(--cs-edge)}
#section-05 .ia-branches article{background:#fff;border-color:#d8e3d9;box-shadow:0 2px 7px rgba(21,55,37,.035)}
#section-05 .ia-branches h3{background:#e5eee4;border-bottom:1px solid #d8e3d9}
#section-05 .ia-root{box-shadow:0 3px 8px rgba(11,66,49,.1)}
#section-06 .flow>li{background:#fff;border-color:var(--cs-edge);box-shadow:var(--cs-shadow)}
#section-06 .flow-decision-gate{background:#eef4ec;border-color:#d3e1d2}
#section-06 .flow-gate-track>div{border-left-color:#7ca486;border-radius:0 8px 8px 0;overflow:hidden}
#section-06 .flow>li.flow-linked,#section-06 .flow-gate-track>div.flow-linked{background:#e8f3e2;border-color:#39735a;box-shadow:inset 0 0 0 1px #39735a,0 3px 10px rgba(21,55,37,.04)}
#section-06 .flow-gate-step{letter-spacing:.035em}
#section-07 .wireframe-record{background:#fff;border-color:#dbe5db;border-radius:14px}
#section-07 .wireframe-step{align-self:flex-start;display:inline-flex;padding:3px 7px;margin-bottom:7px;background:#edf4e9;border-radius:6px;color:#38634e}
#section-07 .wireframe-record>.evidence-preview{background:#fff;border:1px solid #e2e9e1;border-radius:12px;box-shadow:0 4px 12px rgba(21,55,37,.055)}
#section-07 .wireframe-record>.small-copy{padding-top:10px;border-top:1px solid #e4ebe2}
#section-08 .table-wrap tbody th{background:#f0f5ee}
#section-09 .ai-contract>.story-card:nth-child(1),#section-09 .ai-contract>.story-card:nth-child(2){background:#edf4ed}
#section-09 .ai-contract>.story-card:nth-child(3){background:#0b4231;border-color:#0b4231;box-shadow:0 5px 14px rgba(11,66,49,.1)}
#section-09 .ai-contract>.story-card:nth-child(3) :is(h3,p){color:#fff}
#section-09 .ai-contract>.story-card:nth-child(3) .eyebrow{color:#d2ff73}
#section-09 .ai-contract>.story-card:nth-child(4){background:#f1f7e7;border-top:3px solid #b9df72}
#section-09>.card-grid>.story-card{background:#fff}
#section-10 .qa-case-number{display:inline-flex;padding:3px 7px;margin:0 8px 0 0;vertical-align:middle;border-radius:6px;background:#eaf2e7}
#section-10 .qa-evidence-table .qa-confirmed-result{background:#eaf3e5;border-left-color:#84a88a}
#section-11>.card-grid>.story-card{background:#fff}
#section-11 .reflection-bottom>.story-card{background:#fff}
#section-11 .closing-note{position:relative;overflow:hidden;border:1px solid #0b4231;box-shadow:0 5px 16px rgba(11,66,49,.1);background:linear-gradient(120deg,#0b4231,#124d3a)}
#section-11 .closing-note>.eyebrow{display:inline-flex;padding:4px 8px;border:1px solid rgba(210,255,115,.3);border-radius:6px;color:#d2ff73}
.image-dialog{border-color:#d8e3d8;box-shadow:0 18px 60px rgba(8,30,22,.22)}
.image-dialog-header{background:#fff}
.image-dialog-caption,.image-dialog-body{background:#f1f5ee}
@media(min-width:801px){
 .sb-brand{border-bottom-color:var(--cs-edge)}
}
@media(max-width:800px){
 .sidebar{background:#fff;border-bottom-color:var(--cs-edge)}
 #main .slide>.section-head{box-shadow:none;border:0;background:transparent}
 #section-03 .journey-map article+article{border-top:1px solid #ccdccc}
 #section-03 .journey-map .opportunity{border-left:2px solid #91b398}
 #section-05 .ia-tree{background:transparent}
 #section-08 .table-wrap tbody th{background:transparent}
 #section-08 .table-wrap tbody tr{padding:16px 14px;margin-top:12px;background:#fff;border:1px solid var(--cs-edge);border-radius:12px;box-shadow:var(--cs-shadow)}
 #section-08 .table-wrap td:before{color:#486451}
}

/* Keep selected navigation readable on the light mobile surface. */
.toc-item.on :is(.toc-n,.toc-t,.toc-s){color:#0b4231}


/* Share one narrative text size across sections; retain headings and supporting labels. */
:root{--cs-body-size:14px}
body{font-size:var(--cs-body-size);line-height:1.8}
#main .slide :is(.lead,.problem-statement p,.story-card p,.priority-card p,
 .decision-row p:not(.small-copy),.persona-panel dd,.jtbd-panel p,
 .journey-map p,.journey-checkpoints p,.ia-branches ul,.demo-panel p,
 .callout p,.closing-note p,.next-list p:not(.small-copy),.reflection-bottom ul,
 .wireframe-record>p:not(.small-copy):not(.wireframe-step),.decision-proof dd,
 .portfolio-task-grid p,.detail-body,.detail-body>p:not(.small-copy):not(.source-note),.source-overview),
#main .slide .table-wrap :is(th,td),
#section-06 .flow li>span:not(.flow-number){font-size:var(--cs-body-size);line-height:1.8}

/* Give desktop sections a little more space below the top bar. */
@media(min-width:801px){
  #main .slide{padding-top:48px}
}